Fireless cook-stove or cooking-oven.



No. 847,402. 'PATENTED MAR. 19, 1907 -P. H. ERBBS,

FIRBLESS 000K STOVE 0R COOKING OVEN. APPLICATION FILED MAY 31,1906.

UNITED STATES PgrENr OFFICE.

PHILIP H. ERBE'S, or CHICAGO, ILLINOIS.

FIRELESS COOK-STOVE OR COOKING-OVEN.

Application filed May 31,

To all whom it may concern: i p

Be it known that I, PHILIP H. Ennns a citizen of the United States, residing in Chicago, Cook county, Illinois, have invented certain new and useful Improvements in a Device known as a'Fireless Cook-Stove. or Cooking-Oven, of which the following is -a.

full and correct description of the. same, ref

, in vertical transverse section and whereof each highest degree the high part of the wall has its deslgnated referenceletter. Y

Like reference-letters denote like parts throughout. I

The object of my invention is to' produce a cook-oven, or, as it is sometimes called, a fireless cook-stove, which shall be adapted to domestic use and which shall retain to the temperature which the articles to be cooked have when first placed into it. p v

This invention is based on the well-known fact that when a vessel is brought to the boiling-point and then incased in thick material which is a non-conductor, such as cotton or feathers, its temperature may be retained for many hours so near the boiling-point that ubstanceswhich require a high temperature of several hours to boil through will be found to be cooked as satisfactorily as if they had been boiling constantly during the entire tirrie. a

To attain aid desirable ends, I construct my said new device in substantially the following manner, namely: I construct a box of cubical or any other desirable form made of wood a, and on the inside face of said wood I spread a thick coat I) of paint or asbestine or any like material which will serve as an adhesive cement, on which is then secured a coating of mineral wool 0, against which is Specification of Letters Patent.

Patented. March 19, 1907.

1906. Serial No. 319.521.

asbestos board (1, between and parallel to the surfaces of which are large air-cells f, which are surroundedvwith smaller air-cells f, and said cellular formation is further augmented by a web 9 of the said material which passes sinuously, as shown, from' one cell f to the other on alternately opposite sides of adj acent cells, and within the partly-inclosed cells thus formed by said web 9 are also held smaller air-cells f, which thus forms a superb structure as a non-conductor of heat of non inflammable material. The interior surface of'said board (1 is coated with asbestos paint e to give it a smooth hard finish, so as to make it waterproof, so that it may be washed without being subject to holding internal dampness. The mineral wool c is also I a non-conductor of heat of a high order, and, finally, the outer shell of wood a is also a good non-conductor of heat. These saidarti'clesso constructed and combined form a wall through which heat'passes extremely slow.. .The door it has beveled edges, which are covered with boards t', and the opening whichreceives said door has beveled edges faced with boards whereby the edges-of the parts a b c d are inclosed out of sight and against the harboring of impurities or vermin, and the bevels of the contact-faces of the parts'i and j are set at the same angle, so that the said faces are in contact when the door h is closed, and thus there is no chance for air to enter or for heat to escape from said oven. One or more shelves k may be used to hold the cooking utensils.

What I claim isi A lining for a fireless cook-stove consisting of a coat of paint on the interior of the stove, mineral wool adhering to the paint, cellular asbestos board facing the mineral wool, and a smooth hard asbestos paint facing said board and constituting the interior finish of said-lining.

PHILIP H. ERBES. Witnesses:

WM. ZIMMERMAN, FRANK S. GRAHAM.

then placed a'specially-constructed cellular 

